Sewing-machine needle.



PATENTED FEB. 18, 1908. A. M. UARLSEN. SEWING MACHINE NEEDLE.

ATION FILED 0014,1907.

APPLIO ingris a specification.

armextend ng from apoint a, point considerably 'abo've .the same. As faras I am aware, needles of this class'.here-' Uni-TED sTATEs PATENTY'OFFIGE.

AND W M. C'ARLSEN, or srsrA'UL, MINNESOTA.

SEWING-MACHINE N DLE.-

- Specification of Letters Patent.

Patented Feb. 18,1908.

Anplicatikm filed OcmberA IQQ'Z. Serial rt. 395.322..

To azz 'h m a comm,

Be it known that'I, ANDREWM. CARLSEN.

a citizen'of the United States, residingat St. ;Paul, in the'county ofRarnsey and State of Minnesota, have invented a new and useful. sewing-lllac'hine Needle, of which the followt'ofore Constructed are all-without any sup port'to meet the end of said flexible arm so as to prevent the needle from breaking or j bending toward the 'side weakened by the; The main object'of' side opening of the eye.

. mv invention is to-provide sucha'support for the'flexible armfand a further object is to provide improved means for guiding and supportingsaid arm against lateral displaceinent. These. and other objects I attain by the novel construction and arrangement. of

1ngz, in.Which-;fl 1 v lgure 1 isjafslde elevation of asewingmachine needle embodying my pimprov'ements and thejneedle bar of a sewing ma-i chineindieated'in dotted-dines. 'Fig. 2..i's a "ltoip view of the needle infFig. 1.. Fig. 3. is a side view of'the upper partof Fig. 1'.

Fig. 4 is the upper port onof the spring arm. 'in-Fig. 1, showing the side of it that goes next to the needle. 5 isavertieal central section on-the-line aa in Fi Fig. 6 is a oross section oniline bb in F g.1 showing how the thread passes between the needle and the flexible arm. Fig.-- 7 is a modifiea tion of Fig. 6.- ",Fig. 8 is a side elevation of the upper-part .of the needle with the improvements modified. Fig. 9 is a left side View of the needle only in Fig. 8; Fig. 10

' represents the upper and lower spring arm in merals, -1 designates a sewing machine needle Fig. 8, looking at themfrom the side'nearest the needle.

11 in Fi .11, v p Referring to the drawing by reference nuof usual construction, havlng an enlar ed shank 2. adapted to be held in the needlear "of thesewing machine, and near its point an eye3 'that'is open at one side of the needle" illustrated in the accompanying draW- ig. 1 1 is' another modification, and Fig. 12 is'an inverted View of the arm and is covered by a spring-ann- 4, which" is fastened to the needle below its eye bywelds ing, soldering, or riveting, or may be made inte'gral with the'needle- I a The spring arm, may be ofany desired form in cross section but its upper end or face 5 ,is at right angles with the sides of'the arm soas 4 to take a firm'hold of the angular shoulder f the needle, and thereby revent'bending' e that'is Weekof the needle-toward the si enedby the side-opening in' the eye.

9- Upon the outer side of the upper'end of the'arni is eit'her formed or secured a guide 7,

whose segmental edges 8 are'curved toward the sides of the needle (as best shown in Fig. 6); and theupper'end 9 of the guide thus formed-stands away; from the needle shank sufficiently r the thr ad to enter down--:

wardly between it and the needle and by acting on the edges'S force the spring arm' outward and let the threadslip sidewise'down between the arm and the needle in threading it. It being understood that the thread during thethreading process is held stretched like-10 in Fig. 6, where it will b'e seen that the vcurved edges-8. ofthe guide cause the thread to pass the end 5 of the-spring arm and after passing itthe arm'sprin s back in under the shoulder- 6'-of the need e. Into the latter position the arm'is-broug'htand held partly by. its own spring force and partly by a second spring-arm 1'1, whichis secured-in a groove 12in the shank, preferably by. overpressed'burrsl13'of the shank, but it may also be fastened by other means. Said groove 12 is deeper than the thickness of the arm'so as to allow the. arm to vibrate freely whenthe shank isinserted in the needle bar 1.4, shown in dottedoutlines in Fig. 1. The

lower end of spring .arm 11 rests normally in a notch 15 in the upper end .of the guide to permit the thread, in threading the needle, to

enter upward from 'theposition 10 to IO in Figfl; from which position it is forced down as already described.- During such upward movement of the thread thearm 11 is sprung outward and the upward movement of the thread is limited by a shoulder 17 on the arm and then brought downward. The upward movement may also be stoppedby. a s'houl der 20 on theshank (see Fig. 8). The'arm' 11 thus serves four purposes; it stops the up- Ward movement of the thread, it helps to close thespring arm, helps to hold it closed, j

and it prevents lateral displacement of it when it is sprungaway from the'needle.

- needleshank.

In the modification Fig. 7 is shown that the edges 8 of guide 7 may be closer together by forming clearings ,1 8 for them in the a In Figs. 8, 9 and 10 is shown how the needle instead of having one shoulder 6 may have twoshoulders 6 and the arm 4* .(in.

Fig. 10) may, have two angular shoulders 5 to engage said shoulders 6finFig, 9, and the guide 7- is in the middle so as to pass into a groove 19 in Fig.9! In Fig. 8, Where Figs- .9 and 10 are assembled, it will be seen that the-threadmustpress on'a single edge 8 of guide 7-, situated between the shoulders 5, instead of thetwo edges 8 in Figs; 6' and 7.-

In saidmodification I have also shown, in

" Figs. 8', and 10, that the upper spring. ar'm,

'may have a" groove "by which to engage ,purpose. In either ease-there isa the guide 7 and thus guide the'upper 'end of the arm instead of the notch 15 in Fig. 4 for the upper. arm to engage for the same engagement of the two spring arms.v

InFig. 11 the upper arin'll is rigid and has a shoulder 6 to' resist -the-end of the spring arm 4 'an'd edges 8 to guide the.

thread past the shoulder as it springs arm 4* toward the needle in passing upward. 7

In'Fig. 12 22 are eonver guiding the spring arm/1" Having thus described my invention, what 1 The combination 'ofa sewing-machine needle having an open-sided eye, a spring a'rm extending from below the eye and closmg the side thereof; sald spring arm extending toward the shank of the needle, and the.

needle having-an angular shoulder adapted i to meet and resist the end of the spring arm whenvthe latter isin normal position, a guide fixedonthe upper end of the sp rmg arm andshaving its upper end-inclined'outward from the needle to admit entering of, the thread, and one or more guiding edgesproj'eeting'toward the needle beyond the end of the springarm, so as to guide the thread pastLthe end of the arm in moving it downward.

2. The combination of a sewing-machine needle having an open-s ded eye, a spring arm extending from .below the eye and closing the open side thereof, said'spring arm extending toward the. shank of the needle, and the needle havingsan :angular shoulder adapted to meet and resist the end of the spring arm.

1 when the latter is inlnormal position, a guide fixed on the upper-end of the spring arm and having itsupper end leaning outward from the needle to admit entering of the thread," and one or more cam-edges projecting toward the needle beyond the end of the spring arm, whereby the entering thread is guided to pass the end of the arm, and a second or upper spring arm, secured in and guided by a groove in the side of the shank the lower arm.

guidingging faces for ofthe needleand bearing normal-1y upon the outer side of thefree end of the first or lower spring arm, sald second arm having its lower end projected beyond the point of contact with the lower arm to facilitate the insertion of thethread by simply moving it 7 upward between the two arms" and down- 1 ward between The combination of a sewing machine needle having an open-sided eye, a spring arm extending. from below the eye and closing theopen side thereof, said spring arm ex-' tendingtoward the'shank of the needle, and

the needle" having an [angular shoulder adaptedto meet and resist the end oi" the spring arm when the latter is in normalposi tion, a guide fixed on the upper end of the the needle andthe guide of.

spring arm and. having its upper endleaning outward from the needle toadmit' entering of the threadand'one or more cam-edges projecting toward'the needle'beyond the end of the spring arm, whereby the entering thread is guidedto pass the end of the arm, and a second .or upper spring arm secured in and guided by a groove inthe side of'the shank of the needle andbearing' normally upon the outer side of the free end of the first or lower spring arm, said second arm having its lower *end projected beyond the point ofeontact with thelower arm to facilitate the insertion of the thread by simply moving it u ward between the two arms and downwar between the needleand thecamof the lowerarm, said groove in the shank being deepfenough topermit the upper spring arm to swing radial direction of the shank also when-the latter is'held in the needle bar of the sewingmachine, and the free end of the upper s ring arm having a guiding engagement wit the lower spring bar to ment of the same.

l. A sewing machine needle havi J'an open-sided eye, a primary spring arm on'the needle and covering the open side of 'the eye, an'angular shoulder on the needle.

adapted to resist the end of the arm, and an auxiliary spring arm fixed onthe needle and normally engaging the primary spring arm to normally engaging the outer side of the up per, end of the upwardlyextending arm, said downwardly extending arm having its end projected beyond the point of contact with needle and the primary spring arm in threadv prevent'lateral displae i I spring arm fixed on t e needle and coverIng the side opening -eye,'and a downwardly extending spring arm fixed on" the upper part of the needle and of the I l on the side of thenee le adapted to resist the I needle.

the first arm, and'having atits inner side A above said point of contact ofthe two arms a shoulder on the downwardly projecting arm to limit the upward movement of. the thread, and means carried by the upwardly extending arm for the'thread to engage and spring the two arms outward in passing down toward the eye of the needle. 6-. A sewing-machine needle having an open-sided eye, a-spring arm secured below the eye and extending u wardly. so as to eover the side openin of t e eye, and means end of the spring arm, and guiding means on the spring arm for the thread to engage and spring 7; A sewing-machine o en-sided eye, ,a'spring arm secured below t e eye and extending uplwardly so as to cover-the side opening of t eeye andmeans on theside of the needle adapted to resist the end of the arm, and guiding means. on

the arm outward in threading the l needle having an in presence of two witnesses.-

the spring arm forthe' thread to engage and spring the arm outward in 'threadin the needle, another spring arm fixed tofthe's ank of the needle and, resting at the outer side of the upper end of the first arm and project'- in beyond the same so as to enga e and -0 ening of the eye byez ctendin toward the s ank of the needle, means .on t eneedle for resisting the end of the spring arm, and means or guiding the spring arm into engaging position with the resisting means;

In testimony whereof I aflix my signature,

, ANDREW Witnesses: 'D. E. CARLSEN,"

E. Q. CARLYSEN;

M. CARLSEN. 

